T O P

Would this be considered perpetual motion?

Would this be considered perpetual motion?

ShaggysGTI

No, it’s using outside sources for its energy. The permanent magnets will eventually die and fail and the sun will explode.


Secret_Autodidact

/r/NihilisticPhysicsGifs


RunningWhale

R/subsifellfor


azephrahel

Damn it. I was going to subscribe to.


G_Viceroy

I got so excited. This is a bigger let down than converting to nihilism.


[deleted]

[удалено]


petra303

⬆🚫SCAM WARNING🚫⬆ This is a scammer account. They shill for three brands over and over. They really have no insight into what is good or bad. Just a trying to make money selling you their brand.


Plewisdapanda

Also anything involving magnets is not perpetual motion as magnets have a life span. It's something wild like only a 5% loss in magnetism over 100 years, but that still ain't perpetual.


DrizztD0urden

I was going to argue that: By that definition, even if something could run forever, it wouldn't be perpetual since the heat death of the universe would likely stop everything. But I guess that's what perpetual motion is, not using **any** outside forces. Then it got me thinking that this is the only way to prove perpetual motion. But I suppose gravity will always exist, so that could be 1 external factor to still consider. Unless we're all wrong and the big crunch happens. THEN perpetual motion would be impossible, as things could only run for xxxx billion years. But the big crunch would be an external factor acting upon the machine to stop it. That's cheating. I'll allow a perpetual motion machine to be labeled such if it is stopped in this way, not that I have the authority to declare any such thing. TLDR: don't bother reading what I wrote as I just go in circles talking to myself and you just happened to be nearby. Eavesdropping?


Vaudane

Wouldn't an oscillating big bang/crunch make the universe itself a perpetual motion machine?


DrizztD0urden

that depends. \- Is the big bang due to an outside force such as another dimensional string colliding with our own? \- does the amount of energy/matter in each cycle stay consistent? \- am I just using big concept words that I have no real knowledge in?


Vaudane

Dimensional strings eh. Is the universe the sort of thing that if you zoomed in far enough, you'd see the full thing? Like those trippy gifs you find online. You could hypothetically zoom in far enough to see yourself.


rorrExatny5

No, you're still adding energy from outside of the system. In this case the light.


petra303

Hijacking’s top comment. There’s a scammer loose in the thread. Beware of any links to sketch websites. ⬆🚫SCAM WARNING🚫⬆ This is a scammer account. They shill for three brands over and over. They really have no insight into what is good or bad. Just a trying to make money selling you their brand.


hduc

As soon as you comment this you get spam reported which triggers an auto remove. These scammers will stop at nothing. Obviously you are annoying the right people. Keep it up!


[deleted]

[удалено]


petra303

⬆🚫SCAM WARNING🚫⬆ This is a scammer account. They shill for three brands over and over. They really have no insight into what is good or bad. Just a trying to make money selling you their brand.


EatMyPossum

As a rule of thumb (and a law of nature), nothing ever is perpetual motion.


[deleted]

[удалено]


EatMyPossum

That's the first law of newton you're talking about: Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. [Perpetual motion](https://en.wikipedia.org/wiki/Perpetual_motion) doesn't refer to motion in empty space that doesn't stop, but come from the perpetual motion machine: A perpetual motion machine is a hypothetical machine that can do work infinitely without an external energy source.


sometimeonabench

Shouldn’t we be experimenting with a perpetual energy machine in outer space then? Has that ever been discussed?


EatMyPossum

The laws of nature still apply in space, and a perpetual energy machine is conclusively impossible due to the most basic of those laws. so to answer your questions, no we shouldn't, and yes probably by crackpots.


AromaticPolygon

But perpetual motion is still a concept on its own though, you would need perpetual motion to be defined before realistically talking about a machine that could do perpetual motion.


EatMyPossum

Hehe, thought I was still on the philosphy sub when I saw your comment, but since we're not, lets keep it physical, and related to the real world: You don't need to necessarily and [people didn't.](https://en.wikipedia.org/wiki/History_of_perpetual_motion_machines) First came the concept of perpetual motion machines, from which the definition of perpetual motion was derived.


AromaticPolygon

Ok fair point, I reassured myself that it wouldn't need to get too technical on this sub, but I agree with you :) I guess it makes sense too, most visualizations of things would be mechanical, so perpetual motion itself would most likely show up as some kind of machine. I stand by the first part of that statement though, that you could have perpetual motion outside of a "machine" with just stuff moving Out of curiosity, what's the super philosophical side of this? :)


EatMyPossum

>Out of curiosity, what's the super philosophical side of this? :) Since you asked for it.. Funny thing about concepts is that they are all and only defined in relation to other concepts. A concrete example is the a dictionary, that uses words to define words, who also have their own definitions (ad infinitum). The total collections of concepts with meanings therefore doesn't really have a "direction", since in the end, everything is circular anyway. Just like a perpetuum motion machine performs perpetuum motion, perpetuum motion (per it's definition) can only be performed by a perpetuum motion machine. They both depend on each other for their definitions.


Al3xR3ads

What powers the lamp?


mortomr

Plot twist- a levitating solar motor 🤯


sarcasticjackass201

No.


Mysterious_Action346

If you are supplying energy to the system, it isn’t exactly perpetual… correct me if I’m wrong but the thing about perpetual motion was you can’t have a closed system that then has a machine like this moving forever without any loss of energy cause of entropy.


Delcium

I believe you're right, and the idea of perpetual motion is essentially reliant on a system with at least 100% efficiency in converting energy.


adogtrainer

Does it keep turning in the dark? Then no.


JakeJacob

Of course not. Obviously. #PERPETUAL MOTION IS IMPOSSIBLE


AromaticPolygon

In the sense that perpetual anything is impossible, yeah


JakeJacob

In a much more rigorous sense than that.


Ferna_89

If it was solar, it would still be sun powered and not perpetual motion.


TheDevilsAdvokaat

Not at all. It has a continuous power supply. The definition of perpetual motion is that it doesn't require additional energy after starting. If you turn off the light after this one has started it will not run forever; it will slow down gradually due to air friction


PinItYouFairy

Is this r/shittyaskscience all of a sudden?


BudoftheBeat

Energy cannot be created, only exchanged for different kinds of energy. If perpetual motion existed we would have free unlimited energy.


readforit

Yes, if it works in the dark


Zitrone21

Technically its a perpetual motion but not free energy, so it will stop anyways